Home / 18,031.28-24,881.52-10,072.40

Finding the Fourth Proportional to 18,031.28, 24,881.52 and 10,072.40

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Solution

The fourth proportional to 18,031.28, 24,881.52 and 10,072.40 is: 13,898.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,031.28 : 24,881.52 = 10,072.40 : x
  2. Step 2: Convert to fraction form
    18,031.28/24,881.52 = 10,072.40/x
  3. Step 3: Cross multiply
    18,031.28x = 24,881.52 × 10,072.40
  4. Step 4: Simplify right side
    18,031.28x = 250,616,622.05
  5. Step 5: Solve for x
    x = 250,616,622.05/18,031.28
  6. Step 6: Final answer
    x = 13,898.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.